14. Angadenia Miers, Apocyn. S. Amer. 173, plate 27. 1878.
[Greek angos, vessel, and adenos, gland, alluding to urceolate nectaried disc]
David E. Lemke
Subshrubs [lianas]; latex milky. Stems erect, decumbent, or trailing, unarmed, eglandular-pubescent [glabrous]. Leaves persistent, opposite or rarely subopposite, petiolate; stipular colleters absent; laminar colleters absent. Inflorescences axillary, cymose, pedunculate. Flowers: calycine colleters present; corolla yellow to very pale yellow, funnelform, aestivation dextrorse; corolline corona absent; androecium and gynoecium not united into a gynostegium; stamens inserted at top of corolla tube; anthers connivent, adherent to stigma, connectives enlarged, 2-lobed, locules 4; pollen free, not massed into pollinia, translators absent; nectaries 5, alternating with stamens. Fruits follicles, usually paired, erect, green, slender, terete to slightly moniliform, surface striate, glabrous. Seeds narrowly lanceolate, flattened, not winged, beaked, comose, not arillate.
Species 2 (1 in the flora): Florida, West Indies.
As originally circumscribed, Angadenia was a genus of nearly two dozen species, most of which were transferred by R. E. Woodson Jr. (1936) to Fernaldia Woodson, Mandevilla, Neobracea Britton, and Odontadenia Bentham. Following Woodson, the genus is here treated as comprising two species, the native A. berteroi and A. lindeniana Miers of Cuba, Hispaniola, and Jamaica.
SELECTED REFERENCES Barrios, B. and S. Koptur. 2011. Floral biology and breeding system of Angadenia berteroi (Apocynaceae): Why do flowers of the pineland golden trumpet produce few fruits? Int. J. Pl. Sci. 172: 378–385. Barrios, B., G. Arellano, and S. Koptur. 2011. The effects of fire and fragmentation on occurrence and flowering of a rare perennial plant. Pl. Ecol. 212: 1057–1067.
